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Appendix
Preset mode timing table
TCO’99 Eco-document
x
Congratulations!
You have just purchased a TCO’99 approved and labelled
product! Your choice has provided you with a product developed
for professional use. Your purchase has also contributed to
reducing the burden on the environment and also to the further
development of environmentally adapted electronics products.
x
Why do we have environmentally labelled
computers?
In many countries, environmental labelling has become an
established method for encouraging the adaptation of goods and
services to the environment. The main problem, as far as
computers and other electronics equipment are concerned, is that
environmentally harmful substances are used both in the products
and during their manufacture. Since it is not so far possible to
satisfactorily recycle the majority of electronics equipment, most
of these potentially damaging substances sooner or later enter
nature.
There are also other characteristics of a computer, such as energy
consumption levels, that are important from the viewpoints of
both the work (internal) and natural (external) environments.
Since all methods of electricity generation have a negative effect
on the environment (e.g. acidic and climate-influencing
emissions, radioactive waste), it is vital to save energy.
Electronics equipment in offices is often left running
continuously and thereby consumes a lot of energy.
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What does labelling involve?
This product meets the requirements for the TCO’99 scheme
which provides for international and environmental labelling of
personal computers. The labelling scheme was developed as a
joint effort by the TCO (The Swedish Confederation of
Professional Employees), Svenska Naturskyddsforeningen (The
Swedish Society for Nature Conservation) and Statens
Energimyndighet (The Swedish National Energy
Administration).
Approval requirements cover a wide range of issues:
environment, ergonomics, usability, emission of electric and
magnetic fields, energy consumption and electrical and fire
safety.
No. Resolution
(dots
×
lines)
Horizontal
Frequency
Vertical
Frequency
Graphics
Mode
1640
×
480 31.5 kHz 60 Hz VGA-G
2640
×
480 43.3 kHz 85 Hz VESA
3720
×
400 31.5 kHz 70 Hz VGA-Text
4800
×
600 46.9 kHz 75 Hz VESA
5800
×
600 53.7 kHz 85 Hz VESA
6832
×
624 49.7 kHz 75 Hz Macintosh 16"
Color
7 1024
×
768 60.0 kHz 75 Hz VESA
8 1024
×
768 68.7 kHz 85 Hz VESA
9 1280
×
1024 64.0 kHz 60 Hz VESA
(continued)